Full-Stack Web Development with Vue.js and Node

Introducing REST APIs Chapter 4

PUT

The PUT request is used to create or update a record. It creates a new record if the resource

does not exist yet and updates the existing record if the resource already exists. The
equivalent CRUD operation is update(). It replaces the existing representation of the

resource. An example URL for a PUT request is as follows:

PUT http://www.example.com/users/

DELETE

This is used to remove resources from a collection. The equivalent CRUD operation is
delete().

An example URL for a DELETE request is as follows:

DELETE http://www.example.com/users/{user_id}

HTTP status codes

Status codes are the part of a response made by the server for a request made to that server.
It indicates the status of a request, irrespective of whether it got successfully executed or

not. The status codes have three digits. The first digit represents the class or the category of
that response. The HTTP status codes range from 100-500. We will be covering some of the

major status codes in this section.

2XX codes

The 200 range status code is the success range for any request in the API. Within the 200

range, there is a lot of code that represents different forms of success. Explained here are a
few of the many status codes that are available:

200 OK: This response is the standard one. It is just a representation of the

request being successful. This status code also returns the resource on which the

request was executed.